狀語從句

狀語從句在復(fù)合句中作狀語，修飾動(dòng)詞、形容詞或副詞等。狀語從句可以表示時(shí)間、條件、原因、地點(diǎn)、目的、結(jié)果、讓步、方式、比較等意義。

各類狀語從句連接詞（短語）

時(shí)間

when, while, as, as soon as, since, until, after, before

條件

If, unless

原因

As, because, since

地點(diǎn)

Where

目的

So that, in order that

結(jié)果

So that, so…that, such…that

讓步

though, although, even if, however

方式

As

比較

than, (not)as…as

時(shí)間狀語從句：

Whenever he comes, he brings a friend. 他每次來都帶個(gè)朋友。

條件狀語從句：

As long as I am alive, I will go on studying. 只要我活著， 我就要學(xué)習(xí)。

原因狀語從句：

Since we live near the sea, we enjoy nice weather.由于我們住在海邊，能享受到好的天氣。

地點(diǎn)狀語從句：

Put it where we can all see it.把它放在我們都能看到的位置。

目的狀語從句：

Finish this so that you can start another.把這個(gè)做完，你可以開始另一個(gè)。

結(jié)果狀語從句：

He was so angry that he couldn’t say a word. 他氣得說不出話了。

讓步狀語從句：

Though he is in poor health, he works hard.雖然他身體不好，但是他工作很努力。

方式狀語從句：

Students do as the teachers say.學(xué)生們按照老師說的去做。

比較狀語從句：

The work isn’t as easy as I thought.這項(xiàng)工作比我想象得難。

1.易混引導(dǎo)詞while, when, as的區(qū)別：

when既可以指“時(shí)間點(diǎn)”,與瞬間動(dòng)詞連用，也可以指“時(shí)間段”，與延續(xù)性動(dòng)詞連用(=while)。如：

When he came in, his mother was cooking.

When (While) we were at school, we went to the library every day.

While表示時(shí)間段,因此，while 從句的謂語動(dòng)詞要用延續(xù)性動(dòng)詞。如：

Please don’t talk so loud while others are working.

As與when用法相似，但著重強(qiáng)調(diào)主句動(dòng)作與從句動(dòng)作同時(shí)發(fā)生，有“隨著……”或“一邊……一邊……”之意。如：

As you get older, you get more knowledge.隨著年齡的增長(zhǎng)，你獲得的知識(shí)就越多。

2．Because,as,since 的區(qū)別：

Because用于表示直接原因,回答why提出的問題，語氣最強(qiáng);As用于說明原因, 著重點(diǎn)在主句，常譯成“由于”;since表示顯然的或已知的理由或事實(shí)，常譯成“既然”。如：

Water is very important because we can’t live without it.

He didn’t come yesterday as his mother was ill.

I’ll do it for you since you are busy.

3．such…that, so…that, so that 引導(dǎo)結(jié)果狀語從句的區(qū)別：

such是形容詞，修飾名詞; so 是副詞，修飾形容詞或副詞。其結(jié)構(gòu)如下：

1) such + a (n)+ 形容詞+單數(shù)可數(shù)名詞+that……

2) such+形容詞+復(fù)數(shù)可數(shù)名詞+that ……

3) such +形容詞+不可數(shù)名詞+that……。如：

This was such a good film that I went to see it several times.

It was such good books that they sell well.

It was such bad weather that I had to stay at home.

He spoke so fast that I couldn’t follow him.

He is such a lovely boy that we all like him.

=He is so lovely a boy that we all like him.

注：在“形容詞+可數(shù)名詞復(fù)數(shù)/不可數(shù)名詞”結(jié)構(gòu)中，當(dāng)名詞前有many, much, few, little表示數(shù)量的多少時(shí)，名詞前用so。

如：She made so many mistakes that she didn’t pass the exam.

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